DNS Template for resellers

Is it possible to define a DNS Template for resellers? it should be great, because someone can create a Template and make it available for all, but in multiserver setup, with multiple site/mail servers, I need to create different templates and assign one specifically per reseller...

When a reseller is created, as admin I can specify servers it will use, but I can't give a template valid for clients/resellers. So, an specific template for reseller should fix this problem I think.

If reseller creates manually the SOA and records for all his clients, I have to give them specific data of servers/IPs and well, trust or control that he will not commit mistakes... this should be avoid with a template...

I think that the best way could be to implement some variables for DNS Template like "reseller_template_web_server" and "reseller_template_mail_server".

By the way, actual template only allows you to use variable "ip", and it uses same IP for mono server, and it is not usefull for multiserver... I think this should be fix for multiserver setup purpose.